These are no longer produced so when they sell out that’s it!!Noveske makes some of the best rails in the real steel and airsoft world . This is one of the best looking airsoft rails made in my opinion & for the price you get a TON of value !! I have one on a Krytac upper and outer barrel in a separate listing!! I have multiple Rail ,optic & tactical gear options listed .Please take a look at some of my other listings Features Aluminum Alloy construction Free float tube provides a continuous top rail Slots on the rail can be timed to slots on the receiver Unique mounting system Build up your Noveske N4 rifles by using Noveske licensed handguard rail! No need to say that Noveske Rifleworks is one of the most reliable and reputable rifle manufactures in the world. The Noveske Rifleworks licensed MadBull free float handguard rail is manufactured for the M4 style Airsoft. This product is designed for Airsoft and is already blocked the gas pipe tunnel. [Can't be applied on real rifles] MadBull licensed Noveske handguard rail is made of 6065 Aluminum and machined from an extrusion. With hard anodized process, our handguard is more durable and looks better than other toy handguards with black color spray paint. Length: 10" Material: Aluminum Alloy Package Includes: Noveske Rail, Barrel Nut, Mounting Screws Tags - please ignore this: Eotech 558 XPS XPS-2 EXPS 3x Magnifier G33 flip to side combo black tan 4x zoom trijicon mr 4x acog PEQ-15 green red laser lumen lumens peq La-5c peg15 block | Block II block 1 block 2 suppressor silencer noveske amplifier sniper unity magpul mbus rcnc 416 Tracer Silencer keymod mlok m-lok tr str prs vltor hanguard